WebJan 14, 2015 · 2. i found the answer--. //create columns as textbox columns (or whatever you want) DataGridViewTextBoxColumn dgc = new DataGridViewTextBoxColumn (); DataGridViewTextBoxColumn dgc1 = new DataGridViewTextBoxColumn (); //add the colums to the table dataGridView1.Columns.Add (dgc); dataGridView1.Columns.Add … WebC# 在datagridview中插入前防止重复,c#,datagridview,C#,Datagridview,我想在选择一行后添加（或插入）行，但首先我需要检查我添加的内容是否重复，每次我输入两个相同的值时，我都会得到奇怪的结果，我使用了foreach和for语句，但这些都没有帮助我： private void plus() { for (int i = 0; i < dataGridView2.Rows.Count; i++ ...
Accessing DropDownLists inside the GridView Control
WebJul 5, 2010 · 1 Answer. The DataGridView actually has a DataGridViewComboBoxColumn. If you go to the column designer, and add a new column you'll notice you can select one of a few types. It behaves exactly as you have described - on edit, it appears. The DataGridView uses things called editing controls, and has various events for swapping the control into ... WebJan 31, 2024 · 1. @Alberto The linked post is an example which shows how to handle events of the combo box, I'm not saying you should handle ClickEvent. You should first handle EditingControlShowing. Then get ComboBox using e.Control, then attach event handlers to DropDown and DropDownClosed events of the ComboBox to detect when it … flow surf skates ราคา
winforms - How can I add a Drop Down List into every cell for a ...
WebJan 17, 2008 · 2. When the combo box is selected, the previous datagridview cell remains "Blue" (fixed by using the GotFocus event on the combo box to set Selected to false on all cells.) 3. When the combo box is selected and you hit "Enter" the "selected cell" on the datagrid drops down one. Couldn't work out how to stop this. WebMay 29, 2024 · I am trying to add a drop down list into all cells for a column in a datagridView in my Winforms Application. I have created the view programatically by dragging the dgv into the form, and adding columns upon the creation of the class. Web我有一個帶有硬編碼值的下拉列表： 我想用它來插入和編輯數據庫中的值。 例如，在添加記錄時，用戶選擇 報告 ，然后將 報告 插入到數據庫中。 然后，如果用戶去編輯頁面，因為數據庫中的值是 報告 ，那么下拉列表必須顯示 報告 被選中。 但是我能夠成功地將值存儲在數據庫中，但是在編輯 ... green commercial energy suppliers